Reflecting-camera.



G. DIETZ'.

REPLEGTING CAMERA.

APPLIGATION FILED 311.11.11, 191o.-

1,133,369. Y Patented Mar..3o,1915.

2 SHEETS-SHEET 1.

Il l? Zij/7&3.

G. DIETZ.-

REPLEGTING CAMERA.

APPLICATION FILED 1111.11, 1910.

Patented Mar. 30, 1915.

ZSHBETS-SHEBT 2.

vSTATES .PATENT OFFICE.

f GUSTAV DIETZ, Ol' YONKEBS, NEW YORK, ASSIGNOB T0 SPEED COMPANY, Ol' NEW YOBK,`N. Y., A CORPORATION OF NEW?l YORK.. A

muertas-calm Applicationmeazanuary 11,1910. seriaumtszase. l A

To all whom it may concern: Be it known that I, GUs'rAv Dmrz, a citi zen of the United States, residing at Yonkers, in the county of Westchester and State of New York, have invented new and. useful ImprovementsA in Reflecting-Cameras, of

f vwhich the following is a specification.

.My invention relates to cameras in which a movable reflector isprovided for throwing the object to be taken upon a focusing surg face, and its object is to so organize the parts that this principle may be used with a camera having the ordinary between-lens shutter.

The invention also relates to an apparatus by means of lwhich the reflector actuating mechanism and a shutter of the above mentioned type may be actuated by the manipulation of a single member.

A further object of my invention is tol provide a device which may be readily atx tached to ordinaryvfolding cameras to there# by change them at will into reflecting cam.

eras with the attendant advantages of such apparatus.

These and other advantages will appear in the following specification in whlch I will describe m invention, and will point out the novel eatures thereof in the appended claims.

Referring to the drawings, Figure 1 is a sectional side elevation of a reflector compartment of a camera and its actuating mechanism, with its various parts shown in -certain relative positions. Fig. 2 is a similar view of the same parts shown in different operative positions. Fig.'3 isa side elevation of a lens-barrel, showing the position of the shutter. In Fig. 4 I have shown the reiiector compartment of Figs. 1 and 2 in front elevation, partly in section; and 'in Fig. 5, the mannerin which this device is illustrated.

applied to van ordinary folding camera is Like characters of reference designate corresponding parts in all of the figures.

10 designates a box-like frame, open at front and back, which supports the various parts of my apparatus and forms a reflector# compartment. The cover 11 of this frame is hinged so that it may be raised, as shown in Fig. 5, to allow inspection of the focus'- speanmonofwen ram- Patented Mal-.30,1915 I ing surface. The top of the frame or box4 l 1s also preferably ble' hood 12.- -13 is the focusing sur ace whlch may be of ground glass. In Fi 5 I have shown the manner in which this rame 10 1s used to form an additional compartment within a tion. 14 designates the camera-box and 15 its back-plate which supports the sensitized plates and is usually aixed vdirectly to the camera-box, but in this 'case the frame 10 is affixed to the back of the camera-box, and the back-plate is aHiXed to the back of this frame. The frame'lO may itself be divided into two compartments, and, for this purpose, is provided with a transverse wall 16, to whlch is hinged a iap 17, and, with shoulT ders 18 against which the reflector frame 19 yis arranged to rest when in one of its positions.

Aixed to the side walls of the box-like surrounded by a colla si- A camera of ordinary construcf frame 10 are tracks 20, 20 in which actuating slides 21 are supported. Rollers 22 may be provided to reduce the running friction of these slides. The actuating lever 23 is alixedto a rotatable shaft 24 which, by levers 25 and links 26, is connected with the slides 21.

Directly below one edge of the ground l glass v1 3 is a roller 30. This carries an opaque curtain 31 and is provided with an 1nterna1 spring 32 which tends to roll the curtain up. The outer edgeof vthe curtain is fastened to a transverse rod 33, the ends of which are guided by the tracks 34.

35 are` curtain actuating. levers pivoted at 36 to thev sides of the box. 37 designates antifriction rollers on the ends of-.these levers. 38 are rods longitudinallyslidable in lever 35 and connect these levers-with the ends of the transverse curtain rod 33.

A cam surface 27 on the slide 2l is arranged to act against the lower .end ofthe levers 35 to cause the curtainto be drawn under the ground glass and to hold it against the action of its spring during desired parts of the operation, as. will more fully appear hereinafter.

40 is a spring. which, through a connection 41,-is arranged to push the ap 17 up into the position 1n which it is shown in Figs. 1, 4 and 5.l An eccentric cam 28, laffixed to shaft 24, will, when rotated, press this spring down and cause the flap to be swung down into theI position in which itis shown inFiga2.: l

The frame 19 supports a mirror 42. The upper edge of this frame is pivoted to a verticalslidable member 43. This member and the upper ed e of the' mirror frame are supported by ro s 44 which are pivotally connected with actuating arms 45. actuating arms are pivoted at 46 to the frame 10. Another pair of rods 47 connect the free ends of these actuatingarms with the sides of the mirror frame at points below its upper edge. The lower'surfaces of the actuating arms are constructed to' form cam surfaces 48 with which rollers 29 on the slide 21 are arranged to engage.

A drum 50 is rotatably supported within a bracket 51 affixed to the frame 10. Around this drum is wound a fiexible cord 52 on the end of which is a hook 53, by

means of which this cordvmay be fastened' to the release-arm of the shutter 58. A light spring 54 around the ldrum has a tendem-.y to turn the drum in the direction 'to wind up the cord and acts to maintain the cord in tension. To one end ofthe drum is affixed a cylindrical friction member 55, the surface of which is covered with a resilient material such as medium-hard rubber. Directly below this friction member is a segmental cam 56 aiixed to the shaft 24. The outer edge of this -cam is serrated or roughened.

In Fig. 3, he ordinary lensbarrel 57 is shown with the shutter 58 interposed between the lenses which it supports.

have already shown how this-device may be applied to a camera of ordinaryv construction. The cord 52 is carried forward under the pulley 59 to the release-arm of the shutter. In-its usual position the camv 56 is out of engagement'with the friction surface 55 so that the drum 50 is free to rotate in either direction and so that the cord may be drawn forth a desired amount. The spring 54 keeps it taut and also compensates for any movement imparted to it by the usual focusing operation in which the position of the lens-barrel, relative to the other parts of the camera, is adjusted. With the parts in the positions shown in Fig. 1, the shutter 5S may be opened without aifecting the sensitize'd plate held behind this compartment by the back 15. The light rays then admitted will be reflected upon the round glass 13 which is the same distance rom the surface of the mirror as is the surface ofthe sensitized plate. Therefore, the images may be focused on the ground glass and the operator has the advantage of seeing them projected on the focusing surface in the same proportions and sizes as those with which they will be later thrownv upon the These l sensitized plate. The lever 23 is then depressed to expose the plate. The rst effect of the lrotation now imparted to shaftv 24y will be to/move the cam surface 23 of the slide 21 against roller 37, and to push the latter forward, thus drawing curtain 31 across the ground glass 13 against the action of spring 32, thereby shutting off all light from that direction. At the same time, cam 56, engaging friction surface 55, will rotate the .drum and pull the cord '52 with suiiicient force to close the shutter 58. Thc'curtain 31 willv be held in its closed position during the remainder of the opera-- tion. `The continued movement of slide 21 will bring the rollers 29 into engagement with the cam surfaces on actuating arms 45 and will raise the latter into the position shown in Fig. 2. This, through the connecting rods 44 and 47, will raise thewhole mirror frame and bring it up into the position parallel with the ground glass 13. At the same time the flap 17 will be swung out of the way in the manner already described. The various parts will then be brought into the positions in which they are shown in Fig. 2. Now the field is clear between' the lens and the sensitized plate, and further rotation of drum 50 will reopen the shutter and make the exposure. The various partswill thenbe returned to their initial posi' tions, and, if desired, a spring may be provided to cause this part of the operation to be performed automatically.

lt will be understood that the shutter to' permit of the aforesaid operation will be adapted upon partial forward movement to move from a normal open position to a closed position and then upon a further forward. movement to reopen for the exposure.' Further y description of the shutter is deemed unnecessary as a continuous movement such as employed. to actuate the'iiies of many so-called instantaneous shutters from a normal closed position, obviously, ma y in like manner be employed to actuate the lshutter iiies from anormal open position 'as here required. With the apparatus above ldescribed a camera may be constructed with all the advantages of a reecti'ng camera, with the additional advantage of using a shutter associated with the lens-barrel. Moreover, the reector actuating mechanism and the shutter release are actuated by the depression of single actuating lever.

The peculiar supporting and actuating mechanism for the mirror makes possible awa of t l movement -of the reflector frame.

., the camera and its back, open at front and back, a reflector set obliquely across and Obviously, cameras may be constructed 'embodying this invention, but I have already shown thatone of its advantagesis that the reflector compartment is complete in itself, and that it may be used in conjunction with cameras of ordinary construction.

What I claim is 1. An attachment for cameras having removable backs, said attachment beingconstructed to form a compartment between the camera and its back, a movable reflector and a member having a focusing surface within said compartment, and means for covering said surface during the movement of the reflector. A

2. An attachmentV for camerashaving removable backs, said attachment being constructed to form a compartment between the camera and its back, a movable reflector and a member having a focusing surface within ksaid compartment, a curtain for covering the focusing surface, and a movable member varanged to first draw said curtain across the focusing surface 'and to then raise the Y reflector. l

3. An attachment for camerashaving re-l movable backs, said attachment being constructed to form acompartment, between dividing said compartment, a member above the reflector having a focusing surface, and means for covering said member and then raising the reflector up into proximity with the member.

4. An attachment for cameras having removable backs, said attachment being constructed to`form a compartment, between the camera and its back, open at front and back, a hinged flap, a reflector sety obliqu'ely across said compartment and arranged with said flap' to obstruct the passage of light through the compartment, a member above the reflector having a focusingsurface, a curtain for covering said member, a mova ble member arranged to first draw said cur` tain across the focusing surface and to thenv ating shaft, intermediate mechanism, a pivthat itexcludes light entering the top e` compartment during the time of flap about its hinge,

- oted connection between the upper edge of the reflector and said mechanism, said mechamsm being arranged to swing the flap about its hinge to shift said pivoted connection and to swing the reflector about its pivot upon the rotation -of said shaft, a drum, a

cord around said'drum arranged to be connected with the]l shutter, a spring acting upon the drum to maintain said cord under tension, and a cam upon the actuating shaft arranged to be brought into engagement with said drum to actuate the shutter.

7. In a reflecting camera Having a shutter, ahinged flap, a movable reflector, an actuating shaft, intermediate mechanism, a pivoted connection between the upper edge of the reflector and said mechanism, a member having a focusing surface, a curtain arranged to cover said surface, said mecha-Y nism being arranged to draw said curtain across the focusing surface, to swing the connection, and to swing the reflector about its pivot upon the rotation of said shaft, a drum, a cord around said drum arranged to be connected with the shutter, a spring acting upon the drum 4to maintain said cord under tension, and a cam upon the actuating shaft normally out of engagement with said drum but arranged to be brought into engagement with said drum Vto actuate the shutter.

8. In a reflecting camera having a shutter, a hinged flap, a -movable reflector, an actuating shaft, intermediate mechanism, a pivoted connection between the upper edge of the reflector and said mechanism, said mechanism being arranged to swing the flap about its hinge to shift said pivoted connection and to swing the reflector about its pivot upon the rotation of said shaftactu ating mechanism connected/with the shutter and normally diseonnectedfrom the shaftwhen the lense is being focused, but engaged vand operated by the shaft when the shaft or ,to shift said pivoted surface, a movable reflector adapted .to reflect on said surface', separate means to cover nism actuated by said lever first to cause covering of the focusing surface and there.-

' by, and connections engaged by said slide to first effect the covering of the focusing surface and thereafter removal of the reflecting `surface from obstructing position.

a movable reflector adapted to re-v said surface, an operating lever and mecha- Y il I 11.111 acainera the, combination with. a, lens andasuitable'shutter, of a. focusing sur.- face, a movable reflector adapted to reflect on said surface, a curtain arrangedl to cover,

a movable reiector, a focusing surface for said'reilector, means to cover said focusing surface, an operating lever and intermediate mechanism to effect covering of the focusing. 'surface and. removal of the'reiiector from obstructing position. l 13. A camera comprising a suitable, inclosing frame, aback complementalto said frame and adapted to holdpa sensitized element, a lens-barrel, a suitable shutter and in combination therewith adetachable` compartment. arranged l'intermediate ofv the frame and back, a movable reie'ctor within the compartment. intermediate of the lens and the sensitized element and means to remove the reflector from obstructing position. 14. A camera comprising a suitable inclo'sing frame, a back complemental to. said frame-and adapted to hold a sensitized element, a lens-barrel, a suitable shutter and in:A 141) combination therewith, a detachable compartmentv arranged intermediate of the frame and back, a movable reflector within the compartment intermediate of the lens and the sensitized element, a focusing sur- 4.5 fface within the compartment to receive the Riga-ge from the reflector and means to actua the reflector.

15. A camera comprising a suitable closing frame, aback com lemental to said tojframe and adapted to hol asensitized element,a lens barrel, a suitable shutter and in combination therewith, Aa detachable compartment arranged intermediate of theframe and back, a movable reflector within the aacompart'ment intermediate of the lens and the sensitized element, a focusing surface within the compartment to receive theimage from the reiector, a curtain, and a'single means to actuate the reflector and the cur- Wftain. l i

16. A camera comprisinga lens-barrel and a4 shutter arranged tmbe moved therewith, a back to hold a sensitized element to be arranged in the focal plane-of the lens, a mov- 55, able reiectorl arranged intermediate; ofthe said compartment having arrangedtherein.

- msmthe backfor .the sensitizedA element, an actuatingmember, an extensible Vconnection tothe shutter to accommodate. f

for themovement thereof, actuated by saidl member and connections from said member to move the reflector.

17. A camera comprising a lens-barrel and a shutter arranged tobe moved' therewith, a back to hold a sensitized element to be arranged in the focal plane of the lens, ay movable reflector intermediate of the llens and back for the sensitized element, an extensible connection to theshutter to accommodate' for the movement thereof, andactu- -ating means for actuating. said reflecting member and the.l shutter through said connection but normally disengaged therefrom topermit the lens adjustment.. .v

18. A camera comprising a suitable inclosi'ng frame, a lens-barrel and a shutter arranged to bemoved. therewith and incom'- bination therewith a detachable .compartment fitted tothe rear of saidV frame, a back. j

for' a sensitizedelementtobe. arranged'fin the focal planeof vthe lens, amovable reflector within said compartment intermediate of the lens andback for the sensitized element, actuating nieans for the reflector andthe shuttercarried by said compartment and an extensible connection from said actuating means to the shutt'er' said connectionbeing normally disengaged from the actuat. ing means to, permit of lensgadjustment.

19. Acamera having a lens-barrel anda shutter arranged tobe moved therewith, av back for a sensitized element to arrangedI vin the focal plane 'of the lens,. amovable refor the sensitized element, an extensible. connection tothe shutter, saidconnection comprising a druma spring to actuate said drum and a flexible connecting cord carried l Hector intermediate of the lens: andtheback.

by said drum, actuating means for the 're-' flector and an engaging part controlled', thereby to actuate the drum.

20. Agcamera having a Alens-barrel anda shutter arranged to be moved therewith, a backfor a sensitized element to be arranged 1n 4,the focal plane of. thelens, a movable. re.-

Hector intermediate of the lens and the back for. the sensitized element, an extensible connection to Vthe shutter, said'connection -comprising a drum, a spring to actuate. the

drum, an engaging collar on thedrumand -a iexible connecting cord carried by said drum, actuating means for the reiiector and.

a. segmental engaging part controlled by said actuating means frictionally to engage the drum collarto operate the shutter.

21. a reflecting camera, a movable re flector, an actuating mechanism therefor,

`and a supporting frame for the reflector suitably fulcrumed on .the actuating mechaadjacent the upper end ofsaid frame, said` mechanismL beingA operative to swing' position,

connected to the frame near the reflector on its fulcrum point and to shift the fulcrum point therewith whereby the reflector is removed from obstructive said fulcrum point and the upper edge of the mirror being'moved straight up.

22. In a refiecting camera, a movable reector, a slidable fulcrum member, a supporting frame for the reflector 'fulcrumed to said member adjacent the upper end of said frame and-actuating mechanism operative to swing the reector on its fulcrum and to raise said fulcrum4 member thereby to remove the lrefiector from obstructive posi tion, the movement of said fulcrum member being straight upwardly.

23. In a reflecting camera, a movable reiector, a supporting frame therefor, a rocking arm suitably fulcrumed, pivotal connections from the free end of said arm to the supporting frame, said connections being its upper edge whereby said frame is both 'rocked and lifted and means to operate the rocking arm to effect removal of the reflector from obstructing position, the said upperedge of the reflector and frame being moved straight upwardly during such removal.

24. A reflecting camera havinga lens and a suitable shutter, a movable rei-lector arranged in the focal plane of thelens, an operating part, connections ytherefrom tol the reflector to effect the removal of the reflector from obstructing position, a movable flap arranged to cooperate with the reiector to form a light proof protecting wall :and

- means actuated from the operating leverv to effect the removal ing position.

25. A reflecting camera having a lens and a suitable shutter, a movable reflector arranged in the focal plane of the lens, a vslidable fulcrum piece for the refiector, a movable flap, said slidable piece, reector and iap being arranged to coperate in forming a light-tight protecting wall, an operating lever and connections therefrom to effect the movement of said coperating parts to leave the focal plane of the lens unobstructed.

26. A camera comprising a suitable inclosing frame, a back complement to said frame,'a lens, asuitable shutter and in combination therewith, a detachable compartment arranged intermediate of the frame and back and havin therein a movable reflector arranged toghe positioned in the focal plane of the lens, a movable flap arranged to coperate with'the reflector to of the Hap from obstruct- 'form a light-proof protecting wall and actuating mechanism to effect the removal of the reflector and ap from obstructing position. y

27. VIn a camera, the combination with a lens and a suitable shutter, of aifocusing surface, a movable reflector adapted to reilect onsaidsurface, means to cover said surface, an operating lever, an actuating slide, tracks therefor, connections from the operating lever to said slide whereby it is reciprocated and connections'enga'ged by said slide to effect the covering of the focusing surface and removal of the reiiecting surface from obstructing position.

28. A camera having a lens-barrel and a shutter arranged to move therewith, back for a sensitized element to be arranged in the focal plane of the lens,'a movable reflector intermediate of the lens and the back for the sensitized element, an extensible connection to theV shutter, said vconnection comprising a drum, a spring arranged to actuate the drum, an engaging collar on the drum and a exible connecting cord carried by said drum, an operating shaft suitably journaled, a segmental engaging part carried by said shaft frictionally to engage the drum collar to operate the shut- Ater and connections from said operating shaft to the reflector to eect its removal from obstructing position. 29. In a camera the combination vwith a lens and a suitable shutter, of a focusing surface, a movable reector adapted to reflect on said surface, means to cover said surface, upper and lower track members arranged to form a slideway, an actuating slide arranged therein, anti-friction rollers on the slide, a lever suitably fulcrumed and connected to effect the covering of the focusing surface, -a roller on the lever lower end, a cam-surface en the vslide to engage and operate said lever, a refiector operating llever suitably fulcrumed, connections therefrom to the refiector, a cam-surface on the lever, an engaging roller carried by the slide to engage said cam-surface, an operating lever and connections from the operating lever reciprocated.

30. In a camera the combination with a lens and a suitable shutter, of a focusing surface, a movable reflector adapted to re iect lon said surface, means to cover said surface, upper and lower track members arranged to form a slide-way, an actuating slide arranged therein, antifriction rollers on the slide, a lever suitably fulcrumed and connected to effect the covering of the focusing surface, a cam surface on the slide to engage and operate said lever, an operating lever and connections from the operating lever to the slide whe cated. A

3l. In a camera the combination vwith a lens anda suitable shutter, of la lmovable reflector, al supporting frame'therefor, a rocking arm suitably fulcrumed, pivotal connections from the free end of said arm to the supporting frame whereby said frame is rocked,acam surface on said rockmg arm, upper and lower track members eby it is recipro- I movable flap d arranged to form a slidewa an actuating slide arranged therein, a ro er on said slide to engage said cam surface, an operating lever and connections from the operating lever to the slide whereby said slide is recprocated to effect the removal of thereflector from obstructing position. l

32. In a camera the combination with a -lens and a suitable shutter, of a focusing surface, a movable reflector adapted to re fleet on said surface, a spring actuated curtain arranged to cover said surface, means to guide the movement of the curtain, a

curtain actuating lever suitably fulcrumed,

ra slidable extension to said lever connected to the curtain, an actuating slide arranged to reciprocate in a suitable slideway, a cam on said slide to engage the curtain lever, connections from said slide to the reflector,

4an operating lever and connections from the operating lever to the slide whereby it is reci rocated:

33. reflecting camera having a lens and .Y a suitable shutter, a movable reflector arranged in the focal plane of the lens, a s'lidable fulcrum piece for' the reflector, a

a spring acting thereon normally to hol said Hap in raised position, an

`operating shaft, an operating lever thereon,

a cam on said shaft arranged to engage and depress the' sprin-g to cause removal of the flap from obstructing position and connec` tions from lthe operating shaft to the retachable connections to the shutter simul.

taneously to close said shutter.

A camera comprisin a suitable 1nclosing frame, a back comp emental to said frame and adapted to hold a sensitized element, a lens barrel, avsuitable shutter and in combination therewith a detachable compartment having its front and rear sides 'fitted to the frame and back respectively, a

removable reflector within the compartment intermediate the lens'and the back for the sensitized element and means for removing the reflector from, said obstructing position.

In testimony whereofI,z have signed my 60 y name to this specification in the presence of two subscribing witnesses.

, GUSTAV DIETZ. Witnesses:

J. R. MILLwAnn, ELLA TUCH. 

